Zinc Di(Benzothiazol-2-Yl) Disulphide, often short-handed by people in the chemical and rubber industries as ZMB2S or ZMBTS, has found use for decades as a specialized ingredient in rubber vulcanization. This pale yellow powder, flake, or sometimes granular solid owes its popularity to a set of features that remain valued on both the lab bench and the factory floor. Folks working with technical formulations know it as a sulfur donor and accelerator, which means it helps bind rubber molecules during vulcanization, giving tires, belts, and seals their bounce and durability. Its chemical structure strings together two benzothiazole rings with a disulphide bridge and anchors them on a zinc core. This gives it a mighty role in creating crosslinks but also shapes its physical traits: the density of Zinc Di(Benzothiazol-2-Yl) Disulphide generally sits in the 1.5 to 1.6 g/cm³ range. That's a solid weight for an industrial material, meaning it stores easily, ships without trouble, and mixes well in rubber compounds.
Powder, granular, and flake forms are what people tend to see in warehouses, not liquids or solutions. At room temperature, this compound holds up well. Melting occurs somewhere between 180 and 200°C, which means the stuff keeps its shape during all the earliest stages of rubber processing. Solubility in water is low, nearly nil, making it stable in humid plants or storage sheds, but it shows some reactivity with alkalis and organic solvents. It does not usually turn up in crystalline or pearl forms, since its molecular structure and preparation method favor compact, chalky solids. Being a zinc compound, it brings some unique perks: corrosion resistance, a secondary benefit on top of its main role in sulfur vulcanization.
At the microscopic level, every molecule finds a backbone through the collective structure of C14H8N2S4Zn. Chemists can explain how this arrangement, with its disulphide bond and zinc ion, acts like a bridge builder between rubber polymer chains. Bond angles and atomic positions in every grain help explain why it catalyzes sulfur bridges so cleanly. This structure has been dissected with X-ray crystallography and detailed in databases used by chemical engineers and academic researchers. Heat, friction, and aging from environmental exposures can change the arrangement at the surface, but in the core, that backbone keeps its chemical spirit intact through repeated mixing and compounding runs. The HS Code for this compound lands typically in the chapter of “other organic chemicals,” under codes like 3812100000, helping businesses trace raw material costs through customs and avoid regulatory headaches at the border. Knowing the formula and code translates to better tracking for raw material procurement and easier compliance with global trade regulations.
The rubber industry leans hard on set benchmarks for Zinc Di(Benzothiazol-2-Yl) Disulphide quality. Typical purity checks hit 98% or higher, with ash and moisture content kept to bare minimums—no more than 0.5% for most production uses. Appearance, moisture content, sieve residue, and sometimes even trace metals like lead or arsenic turn up in the fine print of material data sheets, demanded by technicians who cannot afford contaminants in finished automotive parts. Usage as a vulcanization accelerator and sulfur donor means it invades recipes for tires, conveyor belts, hoses, gaskets, and a swath of molded goods. Its shelf life often runs three years or more—stable under cool, dry, well-ventilated warehouse conditions. The density shapes volume calculations for bulk orders, guiding storage as much as compound mixing.
Commercial-scale buyers recognize Zinc Di(Benzothiazol-2-Yl) Disulphide as both a specialty and commodity additive. Its reliability, consistency, and ability to deliver precise control over cure times in rubber goods earn it a reputation as an anchor among raw materials. Companies prize its compatibility with natural and synthetic elastomers, blending it with other accelerators or sulfur carriers as needed. Local availability matters; disruptions in shipment or shortage of high-purity product ripple down through tire factories, mining belt producers, and even suppliers for household plumbing washers. The link to zinc supply, benzothiazole precursors, and sulfur markets creates a web worth paying attention to, especially in years when mining or chemical restrictions bite. Large consumers keep an eye on sourcing from responsible producers to meet growing pressure around environmental, social, and governance standards. Proper labeling under the correct HS Code smooths customs processes and keeps lead times short for contract partners in international trade.
Working with Zinc Di(Benzothiazol-2-Yl) Disulphide calls for a watchful eye, like many industrial chemicals. Dust from powders or flakes can irritate airways, so respirators and gloves earn their place in the tool kit. Its toxicity profile has not created the same level of alarm as leaded or high-aromatic accelerators, but prudent handling cuts down risk for factory staff. Proper storage keeps it dry and away from incompatible chemicals—acids, oxidizers, and strong bases. In bulk, lifters and hoppers should limit dust generation. Regulatory signs point toward safe disposal: European and North American guidelines call for careful capture and disposal, not landfill dumping, due to slow decomposition of organosulfur compounds and modest risk of waterway contamination. Emerging studies keep tabs on chronic exposure risks, emphasizing the value of regular health checks for production workers. Responsible users keep material data sheets handy, train employees often, and keep an ear to regulatory changes from groups like OSHA or the European Chemicals Agency.
Like many chemical raw materials, Zinc Di(Benzothiazol-2-Yl) Disulphide presents a conundrum. People depend on the elasticity and longevity of rubber products. At the same time, plant managers and communities face questions about effluent, air quality, and end-of-life treatment. Researchers explore greener synthesis routes, efficient capture systems for production off-gases, and formulation tweaks that may someday cut down the footprint of benzothiazole residues. Personal experience in facilities that adopted updated dust control measures shows a difference: lower cleanup costs, fewer respiratory irritants, and better morale among operators. Open communication between chemists, suppliers, and environmental safety staff grows more important as scrutiny rises. Businesses invest in upgraded collection equipment, filtered ventilation, and packaging with stronger airtight seals. Newer product generations could rely on bio-based or less persistent chemicals, but nothing beats a well-maintained production process and constant worker education for reducing accidents and environmental spills today.
Day-to-day decision-making in industry leans heavily on the quality and clarity of description for chemicals like Zinc Di(Benzothiazol-2-Yl) Disulphide. Clear documentation of molecular structure, physical properties, storage tolerance, risks, and regulatory codes keeps accidents down and compliance up. People responsible for procurement, handling, and disposal need real numbers, useful data, and honest talking points, not recycled phrases or empty reassurances. Referencing molecular formula C14H8N2S4Zn and density figures means something tangible for plant engineers calculating batch mixes or shipment volumes. Watching out for hazardous potential safeguards workers and communities, whether in a tire plant in Asia, a pigment mill in Europe, or a recycling yard in North America. This attention to detail translates directly to safer workplaces, smoother trade, and fewer regulatory headaches for everyone along the supply chain.
